Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 759 · 40 questions

Remember (Push, flow, resist): Voltage → volts (V), current → amperes (A), resistance → ohms (Ω), power → watts (W). milli (m) = ÷ 1000 and kilo (k) = × 1000: 250 mA = 0.25 A, 2.2 kΩ = 2200 Ω. Voltmeter across a part; ammeter in series.

1. 1.True or false: how much a part resists is measured in volts (V). (a) True (b) False
2. 2.True or false: the ammeter is joined across a part. (a) False (b) True
3. 3.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
4. 4.True or false: resistance is measured in volts (V). (a) True (b) False
5. 5.📏 How many ohms (Ω) is 0.4 kΩ?
6. 6.Which of these is measured in amperes (A)? (a) the push of a cell (b) power (c) the flow of charge (d) energy used each second
7. 7.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) resistance (c) voltage (d) the flow of charge
8. 8.📏 How many watts (W) is 1.4 kW?
9. 9.📏 How many kilowatts (kW) is 3950 W? =
10. 10.True or false: the ammeter measures current. (a) False (b) True
11. 11.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
12. 12.True or false: the ammeter is joined in series. (a) True (b) False
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
14. 14.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
15. 15.Which of these is measured in volts (V)? (a) the flow of charge (b) resistance (c) how much a part resists (d) voltage
16. 16.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
17. 17.📏 How many kilo-ohms (kΩ) is 7900 Ω? =
18. 18.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
19. 19.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
20. 20.Which of these is measured in volts (V)? (a) power (b) current (c) the push of a cell (d) energy used each second
21. 21.True or false: the ammeter measures voltage. (a) False (b) True
22. 22.📏 How many amperes (A) is 580 mA? =
23. 23.📏 How many amperes (A) is 660 mA? =
24. 24.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
25. 25.True or false: the voltmeter measures current. (a) True (b) False
26. 26.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) resistance (d) power
27. 27.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 10 (d) 1024
28. 28.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
29. 29.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
30. 30.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
31. 31.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 60 (d) 100
32. 32.📏 How many kilo-ohms (kΩ) is 7100 Ω? =
33. 33.📏 How many milliamperes (mA) is 0.2 A?
34. 34.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the flow of water (d) the water pressure
35. 35.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
36. 36.📏 How many kilowatts (kW) is 4100 W? =
37. 37.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
38. 38.True or false: energy used each second is measured in watts (W). (a) False (b) True
39. 39.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) voltage (d) the push of a cell
40. 40.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)

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